Wireless traffic control and smart city transport icons

A clean black line illustration presents four transportation and surveillance icons arranged in a balanced grid on a white background. Two traffic light symbols appear in the set, each paired with wireless signal marks, alongside a smart phone kiosk and an electric bus icon with an overhead connection. The simple vector style uses even stroke weight, sharp edges, and ample negative space, making the layout feel modern and easy to read. With no color beyond black outlines, the image works well as a technology concept graphic for infrastructure, connected mobility, and urban automation themes. The uncluttered composition gives each icon room to stand apart, which helps when used in presentations, apps, or editorial layouts about smart city systems and transport networks.